Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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How to edit options logged out in Skype for Linux?

I need to edit my Skype preferences without logging in, but I don't see "Options" in any menu. What to do? In my case, I have to edit proxy settings to be able to connect to Skype. There is no ...
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32 views

OpenGrok configuration in Linux - SEVERE: Error: No Exuberant Ctags found in PATH

When I tried running the following command in Linux Environment java -jar opengrok.jar -W /home/app/OpenGrok/opengrok-0.11.1/configuration.xml -c /home/app/OpenGrok/Ctags/ctags.exe -P -S -v -s ...
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1answer
14 views

Sample cron job run but gave errors

I have sample script that backup my site. www folder and database. When is running It's get this error tar: unrecognized option `--transform' Try `tar --help' or `tar --usage' for more information. ...
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1answer
12 views

How to collapse all trees in htop?

I would like to be able to collapse all the trees in the default view of htop. Is there a way to achieve that at once, instead of selecting every tree and hitting F6?
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2answers
34 views

Command “find” -exec replacing string

I'm trying to find JPG files in a folder tree to execute the command "" to transform it to PDF. The problem is that the code I am running leaves the file in the same directory and I want to move it ...
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1answer
28 views

How to compile an ISO with a kernel patch for another computer?

I recently bought an HP Stream, which is a neat, cheap laptop that I intended to install Xubuntu on. Unfortunately, I have been running into problems due to its eMMC drive. I found it seems to be ...
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1answer
17 views

Sudo usermod -a -G is totally ineffective

Really simple, I run the following in Ubuntu 14.04 Server, logged in as max: sudo usermod -a -G www-data max When I run groups as max after doing so, www-data is not in the output set of groups. ...
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1answer
13 views

Mouse focus stuck (Linux)

Sorry for crappy post layout, posting from my phone. Problem: mouse focus gets stuck. Not sure how to explain it, I can sometimes get it to switch to a window, but once there it's locked until that ...
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1answer
25 views

How to set DNS entry with no domain in local network?

I would like to refer local network computers with short DNS names, without full multilevel path. What is required for it? Probably I need to know terminology or something. I wish to configure both ...
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0answers
11 views

SELinux Error with chcat “Requires at least one category”

I have been trying to figure out what's wrong with my chcat syntax. I keep running into this issue: root@dangerzone:~# chcat -l -- +SystemLow,+SystemHigh john /usr/bin/chcat: Requires at least one ...
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2answers
2k views

Android emulator performance on linux

I installed the android SDK and eclipse plugin on my laptop, but I was surprised to find out that the emulator eats up 100% of one of my cpu cores. I have exactly the same setup on a desktop machine ...
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2answers
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In Linux, how can I determine the power consumption of my HDD?

Is there a way to determine how much power my HDD(s) are using? I'm running typical (oldish) desktop with an 848P chipset and Debian GNU/Linux 7.6 (Wheezy).
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3answers
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How do I know which /dev/ttyS* is my serial port?

I have a laptop which has only one serial port. I went into: /dev directory, and I found: ttyS0 ttyS1 ttyS2 ttyS3 How do I know which of those "ttyS" refers to my serial port?
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2answers
44 views

Can't start MySQL to reset root password

I've installed mysql-server on a Linux box and forgot (oops) the root password. Having looked around the internet, the general method is so: Stop MySQL (sudo service mysql stop) Start MySQL in ...
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1answer
68 views

kvm+vfio+vga passthrough, got “root.1” not found

I have a 64bit windows VM using KVM. I want to try VGA passthrough. I started my VM with: qemu-system-x86_64\ -monitor stdio\ -enable-kvm -m 2048 -no-fd-bootchk -localtime -M q35\ -bios ...
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3answers
29k views

How to get file/folder size with SSH on linux?

I am using SSH to connect to a CentOS server and I want to get the file in mb of some files and folders, how can I do it?
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0answers
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Ubuntu 13.10 can't start Unity after upgrade

Last night I ran a apt-get update/upgrade which installed several packages. This morning however, I am unable to log in...as soon as I entered my password I see just wallpaper. I've tried: ...
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2answers
52 views

du and ls report different directory size?

In trying to verify that a copy-operation completed successfully (or at least that it didn't skip any files), I ran du -b inside the source and destination directory and it showed a difference of ...
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1answer
4k views

Wirelss card not being detected in backtrack 5

I just installed backtrack 5 and I am unable to detect my wireless card. iwconfig doesn't list my interface. I can see that the hardware is present in lspci -vnn (see below) but I can't get the ...
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2answers
18 views

is there any refresh needed to update `du` command results?

I have a disk of size 80G I ran du to find that I have a directory which consumed about 60G so I found the file which caused all this a log file (had size of 60G) I deleted it and now df shows that ...
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4answers
2k views

What is the reason for rmdir(1) and rm(1) to co-exist?

I use BSD and Linux every day, I have never had a circumstance which I must use rmdir(1) rather than rm(1). What's the purpose of rmdir's existence?
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1answer
35 views

How to make tap interfaces persistent after reboot?

Some tasks requires having tap interfaces configured + assign ownership. So, I am doing it manually: sudo tuntap -u <username> sudo ifconfig tap0 up sudo ip a a 192.168.1.1/24 dev tap0 or ...
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Alfa Wireless Card disconnects randomly from VirtualBox Linux Guest

I have an Alfa wireless card connected to VirtualBox running a Linux guest. It works, and I can connect to networks, but then it disconnects shortly afterwards. I have to bring the wlan0 interface ...
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0answers
29 views

Python script to create users and upload ssh keys to remote server from a local machine [on hold]

This is what I am trying to do. I have a user list csv file containing: user1, SSHkeys/user1.pub user2, SSHKey/user2.pub Store them respectively into $username and $SSHKey Another server list csv ...
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Trying to build liquidsoap libportaudio not found

I'm trying to build liquidsoap on openSuse 12.2. ./configure is stuck at : configure: error: libportaudio not found However, when I tried installing from rpm: sudo rpm -Uvh ...
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2answers
3k views

Installing different keyboard layout on live debian image

I've downloaded a debian vm image for some testing: http://exploit-exercises.com/download (280mb) It's a Debian Squeeze machine. I want to use the Belgian layout (which is AZERTY) in stead of the ...
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0answers
16 views

Chrome keeps opening maximized

Chrome keeps opens up in a maximized windows while I prefer it to open in normal size. No matter how many times I resize it down it stays the same on new windows. I tried resizing the windows then ...
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2answers
44 views

Can `ls` be set to only list the first X files/directories?

I'm trying to make a command which only displays the first 30 files when the ls command is invoked. I found this method... ls | head -30 ... but it ends up spitting out the files in one long list, ...
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2answers
2k views

Sending Mail on Linux via Bash/Command line

I'm currently trying to send mails via bash script on Linux. I searched the internet and found this code: echo "This is my body" | mail -s"this is my header" thisis@my.mail I don't get any ...
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1answer
2k views

Cannot find grldr in all devices

I'm running wubi on XP machine. Started out originally with 8.04, and gradually upgraded to 10.04. Recently, I was creating linux bootable USB drive, and put it in my system to see if it would work. ...
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1answer
934 views

PAM Authentication / Login

I'm having a little issue on Ubuntu where any commands that require root privileges takes longer to execute than normal. I managed to identify the culprit to the cause after checking my ...
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1answer
21 views

Stop automatically scanning for Wi-Fi on Linux Mint

How can I disable the automatic scan for other Wi-Fi networks when I'm already connected on Linux Mint? I have an HP laptop with touchscreen buttons and the Wi-Fi button doesn't act as usual. It ...
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0answers
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My laptop often resumes when its lid is *closed*

I have an Alienware M17x with Kubuntu 14.10. When I suspend to RAM and close the lid, very often it will wake up after a few seconds of sleep. Sometimes not. I get the feeling it's related to how ...
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1answer
36 views

What's the easiest & most elegant way to edit files on a remote web server? [closed]

I need to edit remote files (web application) on remote server. How do I do this most easily? Remote server is Linux web server, files are on shared hosting, where I can use FTP/SFTP, and jailed SSH ...
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3answers
1k views

Vagrant provision script: echo “source /root/.venvburrito/startup.sh” >> ~/.profile fails

I'm running my vagrant provisioning with a bootstrap.sh script. The script runs fine except for one line: echo "source /root/.venvburrito/startup.sh" >> ~/.profile This line fails. I don't ...
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0answers
14 views

Is there a way to check if driver si working correctly in VM [closed]

Before a few weeks I had problem with one driver on Linux it was about my network card. I was unable to fix the driver and I also destroyed the Windows installtion(i was using doul boot). My question ...
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0answers
15 views

CRON @reboot vncserver?

Is there any reason per-user cronjobs running vncserver @reboot wouldn't run? When I reboot the machine and look into /var/log/syslog, I see the jobs being run, then cron saying (CRON) info (No MTA ...
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1answer
5k views

remote desktop to Fedora 20 with xrdp

I was able to setup xrdp on my Fedora 13 machine and access it from my Windows 7 machine by follow the steps on the first post on this thread It was simple and easy. But when i try the same on my ...
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1answer
14 views

How can I change rename shortcut key to Enter (Return) in Thunar file manager?

Mouse hover method works for all other keys expect Enter. Editing /home/username/.config/Thunar/accels.scm has no effect and it reloads to previous values after logging in again.
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3answers
38 views

Find files then tar with wildcard

I have a series of files called: 2014111test.log 2014111test.log.stuff 2014111test.log.flibble 2014115test.log 2014115test.log.stuff 2014115test.log.flibble I want to find all the log files over a ...
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1answer
372 views

Input/output error reading file

I have a file that is 6.6GB, it just so happens to be a video file, and I'm trying to copy it to an external drive since its quite important for me to keep, however when I try copying it whether with ...
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1answer
16 views

Sourcing ~/.bashrc in ~/.profile?

I'm quite new to developing under OSX and assigned some aliases and other preferences in the ~/.profile initially, however it got quite big and messy after a while because I had a lot of Environment ...
1
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1answer
18 views

Password less ssh AIX Linux

I tried to configure password less SSH from AIX to Linux. I executed the command. scp .ssh/id_rsa.pub root@10.170.163.74:/root/.ssh/authorized_keys When I execute the command and try to connect ...
3
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1answer
91 views

apt-file update: No Index available

Why do I get this message (“No Index available”): Downloading Index http://http.debian.net/debian/dists/wheezy/main/Contents-amd64.diff/Index: No Index available. Downloading complete file ...
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1answer
13 views

Permission denied (publickey,gssapi-with-mic,password)

When I ssh, I get the prompt [host@sma1 ~]$ ssh -Y c00 host@c00's password: Permission denied, please try again. host@c00's password: Permission denied, please try again. host@c00's password: ...
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2answers
502 views

Reversing scroll direction across Synergy connection

I am running synergys on an XFCE desktop, with the scroll direction reversed (to provide "natural" scrolling, as I prefer these days). I am running synergyc on a Mac laptop running Snow Leopard (as we ...
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2answers
3k views

Can I access my desktop over VNC at a different screen size?

I've already installed x11vnc and have it running well on my laptop upstairs. I can access my existing desktop session with no real problems, it works great. The problem I'm running into is the fact ...
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0answers
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grub-mkconfig doesn't detect /boot

lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 596.2G 0 disk ├─sda1 8:1 0 25G 0 part /mnt/arch ├─sda2 8:2 0 2M 0 part ├─sda3 8:3 0 4.5G 0 part ...
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0answers
25 views

How to find which web technologies were used to develop the web interface of a server only accessable through the local LAN?

We access the server by entering the IP address in the address bar of our browsers, e.g. http://172.16.50.4/ Server OS: CentOS Server Apache 2.2.15 FTP: vsftpd 2.2.3 I use Wappalyzer in my browser ...
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2answers
60 views

How to install libav-tools in centos 6

I used tutorial to compile it from source but it never worked for me. I am facing error on following points Download x264 codec and compile it: git clone git://git.videolan.org/x264.git x264 cd ...